Radiator-cap-securing device



Dec. 17, 1929. vVH. H. BoYcE RADIATOR CAP SECURING DEVICE viledyagqh 21.I 1927 2 Sheets-Sheet /N VEN TOR Dec. 17, 1929. H. H. BoYcE v 1,740,152

RADIATOR CAP SECURING DEVICE Filed aaron 21. 1927 2 sheets-sheet 2 Patented Dec. 17, 1929 UNIT stars PATENT GFFICE RADIATOR-C-A-P-SECURING DEVICE Application filed March 21, 1927. Serial No. 176,898.

One of the objects of this invention is to provide an improved locking device for a radiator closure device.

Another object of this invention is to provide a radiator closure lock operated by rotating a device for indicating the condition within a radiator.

Another object of this invention is to provide a locking device for a radiator filler 1o spout closure, the locking of which forces the closure device against the end of the filler spout.

Another object of the invention is to provide a locking radiator cap closure in which all the locking parts are concealed within the radiator filling neck so that the appearance of the outside of the filling neck and cap is not changed and there are no protruding parts to become broken.

Various other objects and advantages will appear as the description of the invention proceeds.

Referring to the drawings in which I have shown what l now consider the preferred embodiment of my invention.

Fig. 1 is a view partly in section showing my improved locking device applied to a radiator filler spout closure device.

Fig. 2 is a central cross-section of my locking device applied to a radiator filler spout closure device taken at right angles to Fig. 1.

Fig. 3 is a cross-sectional view on the line 3-3 of Fig. 1.

Fig. 4 is a cross-sectional view taken on line 4-4 of Fig. 1.

Fig. 5 is a detail of the gripping disks.

Figs. 6 and 7 are details of the gripping disks operating nut.

1 have designated the radiator filler spout closure device by the numeral 1 in Figs. 1 and 27 and the radiator filler spout as 2. The closure device 1 is formed with an annular flange 3 extending downwardly from the pe- 5 riphery thereof and with a cylindrical portion 4 extending downwardly within and spaced from the flange 3. TWhen the closure cap or device 1 is in place in closing position on the filler spout 2, the spout projects into the annular space between the cylindrical projection 4 and the flange 3 and seats against a gasket 5, as shown in Figs. 1 and 2.

A rectangular aperture 6 extends axially of the cylindrical projection 4 from the lower end thereof to a point within the body of the closure device 1. A circular recess 1 is formed in the upper surface of the closure device 1 in axial alinement with the aperture 6 and a circular aperture 7 extends in axial alinement with and connects the recess l and the aperture 6.

A device 8 for indicating the condition within an automobile radiator is positioned with its stem 8 extending through the aperture 7 and the aperture 6. The stem is provided with a shoulder 9 which seats in the recess 1 and is held against outward movement by a member 10 secured to the upper surface of the closure device 1 by the screws 11.

Threads 12 are formed on the stem 8 of the indicating device 8 within aperture 6. A nut 13 is mounted on this thread Dortion of the stem 8 and is provided with a rectangular portion 14 cooperating with the rectangular aperture 6 to prevent the nut from turning. By rotating the indicating device 8, the nut or element 13 will be moved along the stem 8 in the aperture 6 by the threads 12. The nut 13 is tapered towards its lower end, as shown in Figures 1, 2, 6 and 7 for a purpose which will presently be described.

The cylindrical projection 4 is provided with radial slots 15 in the sides thereof and in each of these slots a serrated gripping disk 16 is mounted on a rod 17 as shown in Figs. 1 and 2.

These gripping disks 16 do not fit snugly on the rods 17 but are provided with central openings larger than the rods 17 as considerableplay is desirable between the gripping disks and the rods. These gripping disks extend into the aperture 6 and are engaged by the sloping surface of the nut 13 as the latter is moved .downward by turning the indicating device 8. The downward movement of the nut 13`forces the gripping disks 16 outward into engagement with the inner surface of the filler spout 2 where the serrated edges are projected into the metal of the 1QQ` filling neck and at the same time the downward movement of the nut 13 rotates the disks around the rods 17 to .draw the closure device downward, thus firmly seating the same against the upper end of the filler spout.

The closure portion may be positioned on the iillingneck so that in'grippingposition, the indicator 8 is inthe proper position for reading from the drivers seat.

It will thus be seen that I have provided a radiator neck closureor cap which 'maybe quickly-removed from or securedtothe .radiator filling neck, and securely fastened in place, and which will cooperate with the ordinary filling spout or neck without the necessity for providing a hinge :means or other projection Ion lthe filling neck.v

Various changes in the constructinof the embodiment illustrated inthe ydrawings may be' made without departingk from'the .spirit ofY the invention,='and-I do not-therefore desire. to limit myself ytotheas-peciiic construction vshown 'and described, but -to interpret thea invention broadly within the scope of the appendedrclaims.

What I claim as my invention is:

l. .Inla deviceof the class described, a. radiator fillerflspout, a closuredevice therefor, a plurality of rotatablemembers mounted on said closure device adj acentthe inner surface ofithe filler spout and forced into. engage;

men-t with the' filler spout. andfrotatedto.

draw the iclosure device into: closedv positionv by` rotation of a devicey Ifor indicating the.

condition within the radiator mounted 'on said closure device.

2. In combination with a radiator closurel of the interior of the radiatormounted onv said cap, a non-rotatable member'for the cap and connected tobe operated by Ysaid indicati1ig'-fdevice, and a pluralityr 'of separate rotatablel members contacting with the aforesaid member for securing thel closure cap to the filler spout and releasing said cap therefrom.

4. "Inf combination with a radiator closure cap for a filler spout, a member mounted on said' lcap, ,and capable of rotation without translation,` said member being adapted for external rotation,` Va screw threaded stem thereon and extending internally of said cap, an internal member translatable by rotation ofsaid iirst member, la plurality of eccentricallylpivoted gripping discs operated by the second member and adapted tofbe forced into and vout of contact with lsaid liller-spout by external rotation of said firstv member.`

5. In combination with the ller spout of a radiator, a closure cap for said spout, a device on the exterior of the cap for indicating the thermal condition of the interior of the radiator, said device having a part projecting from the cap into the spout, an element engaged by said part to be moved bodily but held against rotation, and means mounted on the cap to be disposed on the inside of the spout and movable bodily in an outward ldirection by said element to hold the closure capin place on. the spout.

6. vIn combination with the filler spout of a radiator,.a closure cap therefor, a device carried upon the outside of the cap for indicatingfthe thermal condition of the inside of the radiator, saidk devicefhaving a part projecting from the cap to the inside of the spout, anelement engaged by said part tobe moved bodily but held against rotation,-and rotatable meansy on the cap to be turned bysaid element to secure the cap in place on lthe spout.

7 In combination with the filler spout of a radiator, a closure cap therefor, .a device d 

